這篇文章主要介紹了在AngularJS中使用jQuery的zTree插件的方法,Angular中集成了jqLite,但還不是完全版的jQuery,需要的朋友可以參考下
前段時(shí)間一直在看AngularJS的資料,感覺是個(gè)很好的框架,很想有機(jī)會(huì)嘗試用它做點(diǎn)什么。
jQuery ZTree是國(guó)內(nèi)非常不錯(cuò)的JQuery插件,功能齊全,文檔和API也非常的友好,之前項(xiàng)目上常用此插件。
AngularJS 功能雖然非常強(qiáng)大,但UI上提供的插件不像JQuery那么多,而且只能通過directive定義擴(kuò)展的UI插件,雖然國(guó)外已經(jīng)提供了一些基于 directive的Tree功能實(shí)現(xiàn),但畢竟不像ZTree那樣強(qiáng)大,而且Tree是做項(xiàng)目中很長(zhǎng)用的一個(gè)基本功能。
因此,花了一點(diǎn)時(shí)間做了一個(gè)例子將ZTree應(yīng)用到AngularJS中。
zTree和后臺(tái)數(shù)據(jù)的交互
首先,肯定是在頁面中引入Angularjs的相關(guān)腳本,例如模塊(e.g. app.js)、控制器(e.g. controller.js)、Angularjs的腳本并進(jìn)行相關(guān)標(biāo)記的使用,然后引入zTree的樣式包和zTreed 腳本,可以參看一下代碼:
<!DOCTYPE html>
<html lang="zh-CN" ng-app="app">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>樹型菜單</title>
<link href="plugins/bootstrap-3.3.5/css/bootstrap.min.css" rel="stylesheet">
<link href="css/zTreeStyle.css" rel="stylesheet">
</head>
<% include ./../include/header.html %>
<% include ./../include/top-menu.html %>
<div id="content" class="content clearfix" ng-controller="wtConfigInfo">
<ul tree id="tree" style="font:normal 12px/35px 'Arial';color:#dcdcdc;" class="ztree" ng-model="selectNode" value="1" >
</div>
<% include ./../include/footer.html %>
<script src="plugins/jquery-1.11.3.min.js" type="text/javascript"></script>
<script src="plugins/bootstrap-3.3.5/js/bootstrap.min.js" type="text/javascript"></script>
<script src="..//js/angular.min.js" type="text/javascript"></script>
<script src="..//js/angular/app.js" type="text/javascript"></script>
<script src="..//js/angular/controllers.js" type="text/javascript"></script>
<script src="../plugins/zTree/jquery.ztree.all-3.5.js" type="text/javascript"></script>
</body>
</html>
在上面的在ul標(biāo)簽中添加了指令tree,這樣在加載angularjs中,就可通過指令 tree來進(jìn)行菜單數(shù)據(jù)的獲取。具體的代碼可參考以下代碼:
var app = angular.module('app', []);
//樹形結(jié)構(gòu)
app.directive('tree',function(){
return{
require:'?ngModel',
restrict:'A',
link:function($scope,element,attrs,ngModel){
var setting = {
data :{
simpleData:{
enable:true
}
},
callback:{
beforeClick:function(treeId, treeNode) {//點(diǎn)擊菜單時(shí)進(jìn)行的處理
var zTree = $.fn.zTree.getZTreeObj("tree");
if (treeNode.isParent) {
zTree.expandNode(treeNode);
return false;
} else {
window.location.href=treeNode.url;
return true;
}
}
}
};
//向控制器發(fā)送消息,進(jìn)行菜單數(shù)據(jù)的獲取
$scope.$emit("menu",attrs["value"]);//此處attrs["value"]為ul中的value值,此處作為標(biāo)記使用
//接受控制器返回的菜單的消息
$scope.$on("menuData",function(event,data){
$.fn.zTree.init(element, setting, data);//進(jìn)行初始化樹形菜單
var zTree = $.fn.zTree.getZTreeObj("tree");
var selectName = $("#selectName").val();
if(typeof selectName == "undefined" || selectName == ""){
zTree.selectNode(zTree.getNodeByParam("id","1"));//默認(rèn)第一個(gè)選中
$("#selectName").val(zTree.getSelectedNodes()[0].code);//賦值
}else{
for(var i =0; i<data.length;i++){
if(data[i]["code"] == selectName ){
zTree.selectNode(zTree.getNodeByParam("code", data[i]["code"]));
}
}
}
});
}
}
});
在上述代碼中,使用$scope.$emit("menu",attrs["value"]);向父控制器發(fā)送請(qǐng)求數(shù)據(jù),在控制器代碼中可以接受此消息,并使用$http向后臺(tái)進(jìn)行數(shù)據(jù)的請(qǐng)求,并將從數(shù)據(jù)庫中請(qǐng)求來的數(shù)據(jù)發(fā)送個(gè)子控制器??刂破鞯拇a可參考如下:
function wtConfigInfo($scope,$http){
//接受子控制器發(fā)送的消息
$scope.$on("menu",function(event,params){
$http.get("/commonfuncode").success(function(data){
//發(fā)送消息給子控制器
$scope.$broadcast("menuData",dealMenuData(data,params));
});
});
}
這樣,就完成了zTree和后臺(tái)數(shù)據(jù)的交互。
利用指令集成ZTree的實(shí)例
<!doctype html>
<html lang="en" ng-app="app">
<head>
<meta charset="utf-8">
<title>ZTree</title>
<link rel="stylesheet" href="css/app.css">
<link rel="stylesheet" href="css/bootstrap.css">
<link rel="stylesheet" href="css/animations.css">
<link rel="stylesheet" href="css/zTreeStyle/zTreeStyle.css">
<script src="lib/jquery-1.10.2.min.js"></script>
<script src="lib/jquery.ztree.all-3.5.js"></script>
<script src="lib/angular.min.js"></script>
<script src="app.js"></script>
</head>
<body>
<body ng-controller='MyController'>
<ul tree class="ztree" ng-model="selectNode"></ul>
</body>
<pre>
{{selectNode | json}}
</pre>
</body>
</html>
app.js
'use strict';
/* App Module */
var appModule = angular.module('app', []);
appModule.directive('tree', function () {
return {
require: '?ngModel',
restrict: 'A',
link: function ($scope, element, attrs, ngModel) {
//var opts = angular.extend({}, $scope.$eval(attrs.nlUploadify));
var setting = {
data: {
key: {
title: "t"
},
simpleData: {
enable: true
}
},
callback: {
onClick: function (event, treeId, treeNode, clickFlag) {
$scope.$apply(function () {
ngModel.$setViewValue(treeNode);
});
}
}
};
var zNodes = [
{ id: 1, pId: 0, name: "普通的父節(jié)點(diǎn)", t: "我很普通,隨便點(diǎn)我吧", open: true },
{ id: 11, pId: 1, name: "葉子節(jié)點(diǎn) - 1", t: "我很普通,隨便點(diǎn)我吧" },
{ id: 12, pId: 1, name: "葉子節(jié)點(diǎn) - 2", t: "我很普通,隨便點(diǎn)我吧" },
{ id: 13, pId: 1, name: "葉子節(jié)點(diǎn) - 3", t: "我很普通,隨便點(diǎn)我吧" },
{ id: 2, pId: 0, name: "NB的父節(jié)點(diǎn)", t: "點(diǎn)我可以,但是不能點(diǎn)我的子節(jié)點(diǎn),有本事點(diǎn)一個(gè)你試試看?", open: true },
{ id: 21, pId: 2, name: "葉子節(jié)點(diǎn)2 - 1", t: "你哪個(gè)單位的?敢隨便點(diǎn)我?小心點(diǎn)兒..", click: false },
{ id: 22, pId: 2, name: "葉子節(jié)點(diǎn)2 - 2", t: "我有老爸罩著呢,點(diǎn)擊我的小心點(diǎn)兒..", click: false },
{ id: 23, pId: 2, name: "葉子節(jié)點(diǎn)2 - 3", t: "好歹我也是個(gè)領(lǐng)導(dǎo),別普通群眾就來點(diǎn)擊我..", click: false },
{ id: 3, pId: 0, name: "郁悶的父節(jié)點(diǎn)", t: "別點(diǎn)我,我好害怕...我的子節(jié)點(diǎn)隨便點(diǎn)吧...", open: true, click: false },
{ id: 31, pId: 3, name: "葉子節(jié)點(diǎn)3 - 1", t: "唉,隨便點(diǎn)我吧" },
{ id: 32, pId: 3, name: "葉子節(jié)點(diǎn)3 - 2", t: "唉,隨便點(diǎn)我吧" },
{ id: 33, pId: 3, name: "葉子節(jié)點(diǎn)3 - 3", t: "唉,隨便點(diǎn)我吧" }
];
$.fn.zTree.init(element, setting, zNodes);
}
};
});
appModule.controller('MyController', function ($scope) {
});
實(shí)現(xiàn)功能:定義tree這個(gè)屬性,使<ul tree class="ztree" ng-model="selectNode"></ul>自動(dòng)變成一個(gè)有數(shù)據(jù)的tree,點(diǎn)擊樹節(jié)點(diǎn),自動(dòng)變更model 的selectNode。
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